Leif Svalgaard's Research Page: Links to Downloadable Data

TSI and HMF B Reconstruction since AD 1700 [Total Solar irradiance TSI and Heliospheric Magnetic Field Strength HMF B Reconstructions]
TSI from SORCE [Total Solar irradiance since 2003]
TSI from PMOD Composite [Total Solar irradiance since 1978]
Solar Radio Flux F10.7 [F10.7 Radio flux, daily values since 2007]
OMNIWeb IMF Data [Hourly values of Solar Wind Data since 1963]
Mg II EUV Proxy [Daily values of MgII index since 1978]